stream: validate writevSync chunks before queuing#64300
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Ensure writevSync() validates every chunk before handing the batch to the push queue. Invalid chunks now throw ERR_INVALID_ARG_TYPE without leaving data readable from the failed write. Signed-off-by: Kamat, Trivikram <16024985+trivikr@users.noreply.github.com> Assisted-by: openai:gpt-5.5
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Fixes: #64299
stream/iternow validates allwritevSync()chunks before queueing abatch. Previously, invalid chunks such as
[1]could be queued first andthen throw from the queue’s byte-length accounting path, leaving invalid data
visible to the readable side.
This updates the shared chunk fast path to only skip conversion when every
entry is already a
Uint8Array, and adds regression coverage that verifieswritevSync([1])throwsERR_INVALID_ARG_TYPEwithout queueing data.Assisted-by: openai:gpt-5.5